Alternative Depreciation System (ADS)

A method to determine the depreciation of particular assets in special cases

Author: Rani Thakur
Rani Thakur
Rani Thakur
Rani Thakur is an Economics Honours student at Delhi Technological University, skilled in finance, economics, research, and analytics. She has interned as a Financial Research Analyst, Business Growth Intern, and Financial Accounting Intern.
Reviewed By: Christopher Haynes
Christopher Haynes
Christopher Haynes
Asset Management | Investment Banking

Chris currently works as an investment associate with Ascension Ventures, a strategic healthcare venture fund that invests on behalf of thirteen of the nation's leading health systems with $88 billion in combined operating revenue. Previously, Chris served as an investment analyst with New Holland Capital, a hedge fund-of-funds asset management firm with $20 billion under management, and as an investment banking analyst in SunTrust Robinson Humphrey's Financial Sponsor Group.

Chris graduated Magna Cum Laude from the University of Florida with a Bachelor of Arts in Economics and earned a Master of Finance (MSF) from the Olin School of Business at Washington University in St. Louis.

Last Updated:January 22, 2024

What Is an Alternative Depreciation System?

An Alternative Depreciation System (ADS) is a method to determine the depreciation of particular assets in special cases.

ADS uses a depreciation schedule with a longer maturity period, which is generally better in terms of the asset's underlying income than the depreciation of the balance.

It tends to extend the time spread over the cost of the property, ultimately reducing the annual depreciation deduction.

If the taxpayer chooses to apply this system, they are required to continue applying it to all assets in the same asset class that were placed in service during the same fiscal year.

Knowing when it is most beneficial to use this method is important for business owners because an accurate depreciation expense calculation can reduce the overall business tax rate well.

Due to the complexity of IRS regulations on ADS, many business owners prefer hiring tax professionals to ensure they get the most depreciation expense allowed by the IRS.

Key Takeaways

  • The alternative depreciation system is a unique method used to calculate the depreciation of specific assets in distinct circumstances.
  • This method determines depreciation through a straight-line approach that spans a more extended timeframe compared to GDS and results in a lower annual depreciation expense being reported.
  • Small or rapidly expanding enterprises often utilize this system without sufficient taxable income.
  • The General Depreciation System (GDS) lets taxpayers speed up the decrease in value of an asset by claiming more depreciation in the initial years of the asset's lifespan.

Understanding Alternative Depreciation System 

Taxpayers who choose to utilize the alternative depreciation system believe that opting for the alternative schedule will provide a more optimal alignment of depreciation deductions with their income than the recovery period prescribed by the general depreciation system.

This method extends the lifespan for calculating asset depreciation and reduces the yearly depreciation expense. The depreciation is allocated evenly each year, but the first and last years usually show lower amounts to account for the partial months within those specific periods.

This method calculates depreciation through straight-line depreciation. When businesses can choose ADS over GDS, they must use IRS Form 4562 – Depreciation and Amortization. This form allows them to select each asset class regarding the depreciation system.

Once a choice is made, it remains unchanged for that asset class throughout the tax year and cannot be modified.

Small businesses and rapidly growing enterprises often use the Alternative Depreciation System when they lack sufficient current taxable income.

This method offers advantages to companies by allowing them to report reduced depreciation in the initial years, leading to increased profitability. It ensures consistent annual deductions, with exceptions in the first and last years.

Eligibility Criteria for Taxpayers

A taxpayer can choose the ADS for a specific category of assets used within the tax year, such as all assets with a 5-year depreciation period. Alternative Depreciation System must be used for:

  1. Tangible assets used outside the United States
  2. Tax-exempt property being rented out to another tax-exempt organization.
  3. Tax-exempt bonds financed property 
  4. Listed property like a car or truck
  5. Used for business purposes to an extent of 50 percent or lower qualifies for a qualified business use.
  6. A real property trade or business, referred to as an "electing real property trade or business," can opt out of the business interest deduction limit. This applies to residential rental property, nonresidential real property, and qualified improvement property owned by such a business.
  7. A property with a recovery period of 10 years or more, owned by an "electing farming business" that chooses to opt out of the limitation on net interest deduction.
  8. Farmers' property who choose to deduct preproduction period expenses.

Opting for ADS Property Depreciation

In a fiscal period, if a taxpayer finds it necessary or chooses to adopt the Alternative Depreciation System (ADS), the process involves filling out the third section of Form 4562.

In the year of making this election, it is typically mandatory to encompass all assets falling under the same classification put into use during that fiscal year, specifically referring to the entirety of 5-year property.

When opting for asset depreciation under the ADS method, it is essential to shift the recovery period of the assets to match the ADS recovery periods. Taxpayers may encounter various alterations in recovery periods, with some being more commonly observed:

  • 7 years to 10 years for Office Furniture, Fixtures, and Equipment
  • No modification, the 5-year recovery period for Information Systems (including Computers)
  • 15 years to 20 years for Land Improvements
  • 27.5 years to 40 years for Pre-2018 Residential Rental Property
  • 27.5 years to 30 years for Post-2017 Residential Rental Property
  • 39 years to 40 years for Nonresidential Rental Property

Following the Tax Cuts and Jobs Act (TCJA) and IRC Section 163(j), real estate businesses choosing special tax treatment now have to use the Alternative Depreciation System (ADS). This applies mainly to nonresidential real estate, homes, and certain improvement projects. 

Similarly, farms with special elections need to use ADS for things they own with a recovery period of 10 years or more. Rev. Proc. 2019-08 gives clear steps for transitioning to ADS for assets in use before and after December 31, 2017, through a specified "change in use."

Applications and Notable Recovery Periods

The following list outlines certain situations where a company might utilize an alternative depreciation system. However, there are numerous other scenarios where ADS can be employed.

In certain cases, we have to refigure depreciation for Alternative Minimum Tax (AMT), a separate tax that trims deductions. This recalculation uses the Alternative Depreciation System, which is also employed to compute depreciation for earnings and profits.

The IRS Publication 946 outlines recovery periods for various asset classes using the General Depreciation System (GDS) and the ADS methods.

Here are some notable examples of recovery periods for different assets mentioned in the publication:

  1. Cars, light trucks, and computers have a uniform five-year recovery period in GDS and ADS.
  2. Office furniture and fixtures for business purposes have a uniform recovery period of 10 years under ADS.
  3. A personal property without a class life has a recovery period of 12 years under ADS.
  4. Non-residential real estate and residential rental property owners have straight-line recovery spread across 40 years under ADS.

How to Calculate ADS?

The following are the steps to calculate depreciation under an alternative depreciation system:

  1. Find the useful life of the depreciating asset.
  2. Find the salvage value of the asset.
  3. Compute its depreciation using the straight-line method with the formula: 

(Cost of asset — Salvage Value)/ Useful Life

Suppose you bought a nonresidential real property (e.g., commercial building) for $500,000. It has a useful life of 30 years. 

After 30 years, you determine that you’ll be able to sell it for $50,000. 

Depreciation Expense = ($500,000 - $50,000) / 30 years

=$450,000 /30

=$15,000

You can deduct $15,000 each year for your property as a business expense for 10 years, totaling $150,000. After 30 years, you can't deduct more. If you sell the property for over $50,000 at that point, the extra money is taxable income by the IRS.

Pros of an Alternative Depreciation System

The advantages of adopting an Alternative Depreciation System (ADS) include:

  1. Businesses can make assets last longer for tax purposes by spreading out the depreciation over more years. This helps reduce taxable income over an extended period, leading to greater tax savings.
  2. In many cases, the extended depreciation schedule under an alternative depreciation system may better mirror an asset's actual useful life and income-producing abilities compared to the GDS method. This can lead to more accurate depreciation deductions, aligning with the economic reality of the asset.
  3. The depreciation calculation is straightforward, making it easier for businesses to manage their tax obligations without complex computations.
  4. It provides consistent deductions year after year for the entire recovery period. This consistency can simplify cash flow planning for small businesses, as they can anticipate and plan for a consistent depreciation expense.

Cons of an Alternative Depreciation System

While the Alternative Depreciation System (ADS) offers advantages, it comes with certain drawbacks:

  1. One significant drawback is that it decreases the amount a business can write off each year compared to other depreciation methods like GDS. This can result in higher taxable income in the earlier years of an asset's life.
  2. Unlike the GDS depreciation method, businesses using the alternative depreciation system method cannot take a larger deduction, often referred to as a bonus deduction, in the first year, impacting a business's immediate cash flow and tax planning strategies.
  3. Once a business selects the ADS method for a specific asset, it is generally obligated to maintain this choice for the entire duration of that asset's lifespan. Any other properties or assets within the same classification acquired in the same year must also adhere to the ADS method. 

Alternative Depreciation System vs. General Depreciation System 

Let's understand how both of them differ:

Alternative Depreciation System vs. General Depreciation System

Aspect General Depreciation System Alternative Depreciation System
Depreciation Method Declining Balance Method Straight-Line Method
Applicable Assets Often used for assets that become obsolete quickly Typically used for certain real property, tax-exempt use property, and certain listed property, among others
Depreciation Period Shorter depreciation period Longer depreciation period
Depreciation Rates Accelerated rates in the early years Constant rates over the entire recovery period
Early Years Depreciation Higher depreciation expense in the early years Depreciation expenses are more evenly distributed
Common Usage More commonly used Less commonly used, specific to certain situations
Asset Examples Computers, phone equipment, rapidly evolving assets Certain real property, tax-exempt use property, certain listed property, etc.

The differences in recovery periods (or useful life) allowed by ADS vs GDS are:

Differences between recovery period

Asset ADS Recovery Period (in years) GDS Recovery Period (in years)
Agricultural equipment and machinery 10 5 or 7
Automobiles 5 5
Computers and computer equipment 5 5
Fruit bearing trees or vines 20 10
Land improvements 20 15
Nonresidential real estate 40 39
Office equipment and furniture 10 7
Qualified Improvement Property 20 15
Rental Residential property generating revenue after 12/31/2017 30 27.5
Rental Residential property generating revenue before 1/1/2018 40 27.5

Alternative Depreciation System FAQs

Authored and researched by Rani Thakur LinkedIn

Reviewed and edited by Parul Gupta LinkedIn

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